
; 使用loop分两行打印
ASSUME CS:CODESG

CODESG SEGMENT
    MOV CX,13
    MOV BL,'A'
L1:  
    MOV DL,BL
    MOV AH,02H
    INT 21H
    INC BL
    LOOP L1
    
    ; 换行
    MOV DL,10
    MOV AH,02H
    INT 21H

    MOV CX,13
L2:
    MOV DL,BL
    MOV AH,02H
    INT 21H
    INC BL
    LOOP L2


    MOV AX,4C00H
    INT 21H
CODESG ENDS

END